librpc/tools/ndrdump.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB torture tester
   4    Copyright (C) Andrew Tridgell 2003
   5    Copyright (C) Jelmer Vernooij 2006
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "system/filesys.h"
  23 #include "system/locale.h"
  24 #include "librpc/ndr/libndr.h"
  25 #include "librpc/ndr/ndr_table.h"
  26 #include "librpc/gen_ndr/ndr_dcerpc.h"
  27 #include "lib/cmdline/cmdline.h"
  28 #include "param/param.h"
  29 #include "lib/util/base64.h"
  30
  31 static const struct ndr_interface_call *find_function(
  32         const struct ndr_interface_table *p,
  33         const char *function)
  34 {
  35         unsigned int i;
  36         if (isdigit(function[0])) {
  37                 char *eptr = NULL;
  38                 i = strtoul(function, &eptr, 0);
  39                 if (i >= p->num_calls
  40                     || eptr == NULL
  41                     || eptr[0] != '\0') {
  42                         printf("Function number '%s' not found\n",
  43                                function);
  44                         exit(1);
  45                 }
  46                 return &p->calls[i];
  47         }
  48         for (i=0;i<p->num_calls;i++) {
  49                 if (strcmp(p->calls[i].name, function) == 0) {
  50                         break;
  51                 }
  52         }
  53         if (i == p->num_calls) {
  54                 printf("Function '%s' not found\n", function);
  55                 exit(1);
  56         }
  57         return &p->calls[i];
  58 }
  59
  60 /*
  61  * Find a public structure on the pipe and return it as if it were
  62  * a function (as the rest of ndrdump is based around functions)
  63  */
  64 static const struct ndr_interface_call *find_struct(
  65         const struct ndr_interface_table *p,
  66         const char *struct_name,
  67         struct ndr_interface_call *out_buffer)
  68 {
  69         unsigned int i;
  70         const struct ndr_interface_public_struct *public_struct = NULL;
  71         if (isdigit(struct_name[0])) {
  72                 char *eptr = NULL;
  73                 i = strtoul(struct_name, &eptr, 0);
  74                 if (i >= p->num_public_structs
  75                     || eptr == NULL
  76                     || eptr[0] != '\0') {
  77                         printf("Public structure number '%s' not found\n",
  78                                struct_name);
  79                         exit(1);
  80                 }
  81                 public_struct = &p->public_structs[i];
  82         } else {
  83                 for (i=0;i<p->num_public_structs;i++) {
  84                         if (strcmp(p->public_structs[i].name, struct_name) == 0) {
  85                                 break;
  86                         }
  87                 }
  88                 if (i == p->num_public_structs) {
  89                         printf("Public structure '%s' not found\n", struct_name);
  90                         exit(1);
  91                 }
  92                 public_struct = &p->public_structs[i];
  93         }
  94         *out_buffer = (struct ndr_interface_call) {
  95                 .name = public_struct->name,
  96                 .struct_size = public_struct->struct_size,
  97                 .ndr_pull = public_struct->ndr_pull,
  98                 .ndr_push = public_struct->ndr_push,
  99                 .ndr_print = public_struct->ndr_print
 100         };
 101         return out_buffer;
 102 }
 103
 104 _NORETURN_ static void show_pipes(void)
 105 {
 106         const struct ndr_interface_list *l;
 107         printf("\nYou must specify a pipe\n");
 108         printf("known pipes are:\n");
 109         for (l=ndr_table_list();l;l=l->next) {
 110                 if(l->table->helpstring) {
 111                         printf("\t%s - %s\n", l->table->name, l->table->helpstring);
 112                 } else {
 113                         printf("\t%s\n", l->table->name);
 114                 }
 115         }
 116         exit(1);
 117 }
 118
 119 _NORETURN_ static void show_functions(const struct ndr_interface_table *p)
 120 {
 121         int i;
 122         printf("\nYou must specify a function\n");
 123         printf("known functions on '%s' are:\n", p->name);
 124         for (i=0;i<p->num_calls;i++) {
 125                 printf("\t0x%02x (%2d) %s\n", i, i, p->calls[i].name);
 126         }
 127         printf("known public structures on '%s' are:\n", p->name);
 128         for (i=0;i<p->num_public_structs;i++) {
 129                 printf("\t%s\n", p->public_structs[i].name);
 130         }
 131         exit(1);
 132 }
 133
 134 static char *stdin_load(TALLOC_CTX *mem_ctx, size_t *size)
 135 {
 136         int num_read, total_len = 0;
 137         char buf[255];
 138         char *result = NULL;
 139
 140         while((num_read = read(STDIN_FILENO, buf, 255)) > 0) {
 141
 142                 if (result) {
 143                         result = talloc_realloc(
 144                                 mem_ctx, result, char, total_len + num_read);
 145                 } else {
 146                         result = talloc_array(mem_ctx, char, num_read);
 147                 }
 148
 149                 memcpy(result + total_len, buf, num_read);
 150
 151                 total_len += num_read;
 152         }
 153
 154         if (size)
 155                 *size = total_len;
 156
 157         return result;
 158 }
 159
 160 static const struct ndr_interface_table *load_iface_from_plugin(const char *plugin, const char *pipe_name)
 161 {
 162         const struct ndr_interface_table *p;
 163         void *handle;
 164         char *symbol;
 165
 166         handle = dlopen(plugin, RTLD_NOW);
 167         if (handle == NULL) {
 168                 printf("%s: Unable to open: %s\n", plugin, dlerror());
 169                 return NULL;
 170         }
 171
 172         symbol = talloc_asprintf(NULL, "ndr_table_%s", pipe_name);
 173         p = (const struct ndr_interface_table *)dlsym(handle, symbol);
 174
 175         if (!p) {
 176                 printf("%s: Unable to find DCE/RPC interface table for '%s': %s\n", plugin, pipe_name, dlerror());
 177                 talloc_free(symbol);
 178                 dlclose(handle);
 179                 return NULL;
 180         }
 181
 182         talloc_free(symbol);
 183
 184         return p;
 185 }
 186
 187 static void ndrdump_data(uint8_t *d, uint32_t l, bool force)
 188 {
 189         dump_data_file(d, l, !force, stdout);
 190 }
 191
 192 static void ndrdump_data_diff(const uint8_t *d1, size_t l1,
 193                               const uint8_t *d2, size_t l2,
 194                               bool force)
 195 {
 196         dump_data_file_diff(stdout, !force, d1, l1, d2, l2);
 197 }
 198
 199 static NTSTATUS ndrdump_pull_and_print_pipes(const char *function,
 200                                 struct ndr_pull *ndr_pull,
 201                                 struct ndr_print *ndr_print,
 202                                 const struct ndr_interface_call_pipes *pipes)
 203 {
 204         enum ndr_err_code ndr_err;
 205         uint32_t i;
 206
 207         for (i=0; i < pipes->num_pipes; i++) {
 208                 uint64_t idx = 0;
 209                 while (true) {
 210                         void *saved_mem_ctx;
 211                         uint32_t *count;
 212                         void *c;
 213                         char *n;
 214
 215                         c = talloc_zero_size(ndr_pull, pipes->pipes[i].chunk_struct_size);
 216                         talloc_set_name(c, "struct %s", pipes->pipes[i].name);
 217                         /*
 218                          * Note: the first struct member is always
 219                          * 'uint32_t count;'
 220                          */
 221                         count = (uint32_t *)c;
 222
 223                         n = talloc_asprintf(c, "%s: %s[%llu]",
 224                                         function, pipes->pipes[i].name,
 225                                         (unsigned long long)idx);
 226
 227                         saved_mem_ctx = ndr_pull->current_mem_ctx;
 228                         ndr_pull->current_mem_ctx = c;
 229                         ndr_err = pipes->pipes[i].ndr_pull(ndr_pull, NDR_SCALARS, c);
 230                         ndr_pull->current_mem_ctx = saved_mem_ctx;
 231
 232                         printf("pull returned %s\n",
 233                                ndr_map_error2string(ndr_err));
 234                         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 235                                 talloc_free(c);
 236                                 return ndr_map_error2ntstatus(ndr_err);
 237                         }
 238                         pipes->pipes[i].ndr_print(ndr_print, n, c);
 239                         if (*count == 0) {
 240                                 talloc_free(c);
 241                                 break;
 242                         }
 243                         talloc_free(c);
 244                         idx++;
 245                 }
 246         }
 247
 248         return NT_STATUS_OK;
 249 }
 250
 251 static void ndr_print_dummy(struct ndr_print *ndr, const char *format, ...)
 252 {
 253         /* This is here so that you can turn ndr printing off for the purposes
 254            of benchmarking ndr parsing. */
 255 }
 256
 257  int main(int argc, const char *argv[])
 258 {
 259         const struct ndr_interface_table *p = NULL;
 260         const struct ndr_interface_call *f;
 261         struct ndr_interface_call f_buffer;
 262         const char *pipe_name = NULL;
 263         const char *filename = NULL;
 264         /*
 265          * The format type:
 266          *   in:     a request
 267          *   out:    a response
 268          *   struct: a public structure
 269          */
 270         const char *type = NULL;
 271         /*
 272          * Format is either the name of the decoding function or the
 273          * name of a public structure
 274          */
 275         const char *format = NULL;
 276         const char *cmdline_input = NULL;
 277         const uint8_t *data;
 278         size_t size;
 279         DATA_BLOB blob;
 280         struct ndr_pull *ndr_pull;
 281         struct ndr_print *ndr_print;
 282         TALLOC_CTX *mem_ctx;
 283         int flags = 0;
 284         poptContext pc;
 285         NTSTATUS status;
 286         enum ndr_err_code ndr_err;
 287         void *st;
 288         void *v_st;
 289         const char *ctx_filename = NULL;
 290         const char *plugin = NULL;
 291         bool validate = false;
 292         bool dumpdata = false;
 293         bool assume_ndr64 = false;
 294         bool quiet = false;
 295         bool hex_input = false;
 296         bool base64_input = false;
 297         bool print_after_parse_failure = false;
 298         int opt;
 299         enum {
 300                 OPT_CONTEXT_FILE=1000,
 301                 OPT_VALIDATE,
 302                 OPT_DUMP_DATA,
 303                 OPT_LOAD_DSO,
 304                 OPT_NDR64,
 305                 OPT_QUIET,
 306                 OPT_BASE64_INPUT,
 307                 OPT_HEX_INPUT,
 308                 OPT_CMDLINE_INPUT,
 309                 OPT_PRINT_AFTER_PARSE_FAILURE,
 310         };
 311         struct poptOption long_options[] = {
 312                 POPT_AUTOHELP
 313                 {"context-file", 'c', POPT_ARG_STRING, NULL, OPT_CONTEXT_FILE, "In-filename to parse first", "CTX-FILE" },
 314                 {"validate", 0, POPT_ARG_NONE, NULL, OPT_VALIDATE, "try to validate the data", NULL },
 315                 {"dump-data", 0, POPT_ARG_NONE, NULL, OPT_DUMP_DATA, "dump the hex data", NULL },
 316                 {"load-dso", 0, POPT_ARG_STRING, NULL, OPT_LOAD_DSO, "load from shared object file", NULL },
 317                 {"ndr64", 0, POPT_ARG_NONE, NULL, OPT_NDR64, "Assume NDR64 data", NULL },
 318                 {"quiet", 0, POPT_ARG_NONE, NULL, OPT_QUIET, "Don't actually dump anything", NULL },
 319                 {"base64-input", 0, POPT_ARG_NONE, NULL, OPT_BASE64_INPUT, "Read the input file in as a base64 string", NULL },
 320                 {"hex-input", 0, POPT_ARG_NONE, NULL, OPT_HEX_INPUT, "Read the input file in as a hex dump", NULL },
 321                 {"input", 0, POPT_ARG_STRING, NULL, OPT_CMDLINE_INPUT, "Provide the input on the command line (use with --base64-input)", "INPUT" },
 322                 {"print-after-parse-failure", 0, POPT_ARG_NONE, NULL, OPT_PRINT_AFTER_PARSE_FAILURE,
 323                  "Try to print structures that fail to parse (used to develop parsers, segfaults are likely).", NULL },
 324                 POPT_COMMON_SAMBA
 325                 POPT_COMMON_VERSION
 326                 POPT_TABLEEND
 327         };
 328         uint32_t highest_ofs;
 329         struct dcerpc_sec_verification_trailer *sec_vt = NULL;
 330         bool ok;
 331
 332         ndr_table_init();
 333
 334         /* Initialise samba stuff */
 335         smb_init_locale();
 336
 337         setlinebuf(stdout);
 338
 339         mem_ctx = talloc_init("ndrdump.c/main");
 340         if (mem_ctx == NULL) {
 341                 exit(ENOMEM);
 342         }
 343
 344         ok = samba_cmdline_init(mem_ctx,
 345                                 SAMBA_CMDLINE_CONFIG_CLIENT,
 346                                 false /* require_smbconf */);
 347         if (!ok) {
 348                 DBG_ERR("Failed to init cmdline parser!\n");
 349                 TALLOC_FREE(mem_ctx);
 350                 exit(1);
 351         }
 352
 353         pc = samba_popt_get_context(getprogname(),
 354                                     argc,
 355                                     argv,
 356                                     long_options,
 357                                     0);
 358         if (pc == NULL) {
 359                 DBG_ERR("Failed to setup popt context!\n");
 360                 TALLOC_FREE(mem_ctx);
 361                 exit(1);
 362         }
 363
 364         poptSetOtherOptionHelp(
 365                 pc, "<pipe|uuid> <format> <in|out|struct> [<filename>]");
 366
 367         while ((opt = poptGetNextOpt(pc)) != -1) {
 368                 switch (opt) {
 369                 case OPT_CONTEXT_FILE:
 370                         ctx_filename = poptGetOptArg(pc);
 371                         break;
 372                 case OPT_VALIDATE:
 373                         validate = true;
 374                         break;
 375                 case OPT_DUMP_DATA:
 376                         dumpdata = true;
 377                         break;
 378                 case OPT_LOAD_DSO:
 379                         plugin = poptGetOptArg(pc);
 380                         break;
 381                 case OPT_NDR64:
 382                         assume_ndr64 = true;
 383                         break;
 384                 case OPT_QUIET:
 385                         quiet = true;
 386                         break;
 387                 case OPT_BASE64_INPUT:
 388                         base64_input = true;
 389                         break;
 390                 case OPT_HEX_INPUT:
 391                         hex_input = true;
 392                         break;
 393                 case OPT_CMDLINE_INPUT:
 394                         cmdline_input = poptGetOptArg(pc);
 395                         break;
 396                 case OPT_PRINT_AFTER_PARSE_FAILURE:
 397                         print_after_parse_failure = true;
 398                         break;
 399                 }
 400         }
 401
 402         pipe_name = poptGetArg(pc);
 403
 404         if (!pipe_name) {
 405                 poptPrintUsage(pc, stderr, 0);
 406                 show_pipes();
 407                 exit(1);
 408         }
 409
 410         if (plugin != NULL) {
 411                 p = load_iface_from_plugin(plugin, pipe_name);
 412         }
 413         if (!p) {
 414                 p = ndr_table_by_name(pipe_name);
 415         }
 416
 417         if (!p) {
 418                 struct GUID uuid;
 419
 420                 status = GUID_from_string(pipe_name, &uuid);
 421
 422                 if (NT_STATUS_IS_OK(status)) {
 423                         p = ndr_table_by_uuid(&uuid);
 424                 }
 425         }
 426
 427         if (!p) {
 428                 printf("Unknown pipe or UUID '%s'\n", pipe_name);
 429                 exit(1);
 430         }
 431
 432         format = poptGetArg(pc);
 433         type = poptGetArg(pc);
 434         filename = poptGetArg(pc);
 435
 436         if (!format || !type) {
 437                 poptPrintUsage(pc, stderr, 0);
 438                 show_functions(p);
 439                 exit(1);
 440         }
 441
 442         if (strcmp(type, "struct") == 0) {
 443                 flags = NDR_SCALARS|NDR_BUFFERS; /* neither NDR_IN nor NDR_OUT */
 444                 f = find_struct(p, format, &f_buffer);
 445         } else {
 446                 f = find_function(p, format);
 447                 if (strcmp(type, "in") == 0 ||
 448                     strcmp(type, "request") == 0) {
 449                         flags |= NDR_IN;
 450                 } else if (strcmp(type, "out") == 0 ||
 451                            strcmp(type, "response") == 0) {
 452                         flags |= NDR_OUT;
 453                 } else {
 454                         printf("Bad type value '%s'\n", type);
 455                         exit(1);
 456                 }
 457         }
 458
 459         st = talloc_zero_size(mem_ctx, f->struct_size);
 460         if (!st) {
 461                 printf("Unable to allocate %d bytes for %s structure\n",
 462                        (int)f->struct_size,
 463                        f->name);
 464                 TALLOC_FREE(mem_ctx);
 465                 exit(1);
 466         }
 467
 468         v_st = talloc_zero_size(mem_ctx, f->struct_size);
 469         if (!v_st) {
 470                 printf("Unable to allocate %d bytes for %s validation "
 471                        "structure\n",
 472                        (int)f->struct_size,
 473                        f->name);
 474                 TALLOC_FREE(mem_ctx);
 475                 exit(1);
 476         }
 477
 478         if (ctx_filename) {
 479                 if (flags & NDR_IN) {
 480                         printf("Context file can only be used for \"out\" packages\n");
 481                         TALLOC_FREE(mem_ctx);
 482                         exit(1);
 483                 }
 484
 485                 data = (uint8_t *)file_load(ctx_filename, &size, 0, mem_ctx);
 486                 if (!data) {
 487                         perror(ctx_filename);
 488                         TALLOC_FREE(mem_ctx);
 489                         exit(1);
 490                 }
 491
 492                 blob = data_blob_const(data, size);
 493
 494                 ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
 495                 if (ndr_pull == NULL) {
 496                         perror("ndr_pull_init_blob");
 497                         TALLOC_FREE(mem_ctx);
 498                         exit(1);
 499                 }
 500                 ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 501                 if (assume_ndr64) {
 502                         ndr_pull->flags |= LIBNDR_FLAG_NDR64;
 503                 }
 504
 505                 ndr_err = f->ndr_pull(ndr_pull, NDR_IN, st);
 506
 507                 if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
 508                         highest_ofs = ndr_pull->offset;
 509                 } else {
 510                         highest_ofs = ndr_pull->relative_highest_offset;
 511                 }
 512
 513                 if (highest_ofs != ndr_pull->data_size) {
 514                         printf("WARNING! %d unread bytes while parsing context file\n", ndr_pull->data_size - highest_ofs);
 515                 }
 516
 517                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 518                         printf("pull for context file returned %s\n",
 519                                ndr_map_error2string(ndr_err));
 520                         TALLOC_FREE(mem_ctx);
 521                         exit(2);
 522                 }
 523                 memcpy(v_st, st, f->struct_size);
 524         }
 525
 526         if (filename && cmdline_input) {
 527                 printf("cannot combine --input with a filename\n");
 528                 TALLOC_FREE(mem_ctx);
 529                 exit(1);
 530         } else if (cmdline_input) {
 531                 data = (const uint8_t *)cmdline_input;
 532                 size = strlen(cmdline_input);
 533         } else if (filename) {
 534                 data = (uint8_t *)file_load(filename, &size, 0, mem_ctx);
 535         } else {
 536                 data = (uint8_t *)stdin_load(mem_ctx, &size);
 537         }
 538
 539         if (!data) {
 540                 if (filename)
 541                         perror(filename);
 542                 else
 543                         perror("stdin");
 544                 exit(1);
 545         }
 546
 547         if (hex_input && base64_input) {
 548                 printf("cannot combine --hex-input with --base64-input\n");
 549                 TALLOC_FREE(mem_ctx);
 550                 exit(1);
 551
 552         } else if (hex_input) {
 553                 blob = hexdump_to_data_blob(mem_ctx, (const char *)data, size);
 554         } else if (base64_input) {
 555                 /* Use talloc_strndup() to ensure null termination */
 556                 blob = base64_decode_data_blob_talloc(
 557                         mem_ctx,
 558                         talloc_strndup(mem_ctx, (const char *)data, size));
 559         } else {
 560                 blob = data_blob_const(data, size);
 561         }
 562
 563         if (data != NULL && blob.data == NULL) {
 564                 printf("failed to decode input data\n");
 565                 TALLOC_FREE(mem_ctx);
 566                 exit(1);
 567         }
 568
 569         ndr_pull = ndr_pull_init_blob(&blob, mem_ctx);
 570         if (ndr_pull == NULL) {
 571                 perror("ndr_pull_init_blob");
 572                 TALLOC_FREE(mem_ctx);
 573                 exit(1);
 574         }
 575         ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 576         if (assume_ndr64) {
 577                 ndr_pull->flags |= LIBNDR_FLAG_NDR64;
 578         }
 579
 580         ndr_print = talloc_zero(mem_ctx, struct ndr_print);
 581         if (quiet) {
 582                 ndr_print->print = ndr_print_dummy;
 583         } else {
 584                 ndr_print->print = ndr_print_printf_helper;
 585         }
 586         ndr_print->depth = 1;
 587
 588         ndr_err = ndr_pop_dcerpc_sec_verification_trailer(ndr_pull, mem_ctx, &sec_vt);
 589         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 590                 printf("ndr_pop_dcerpc_sec_verification_trailer returned %s\n",
 591                        ndr_map_error2string(ndr_err));
 592         }
 593
 594         if (sec_vt != NULL && sec_vt->count.count > 0) {
 595                 printf("SEC_VT: consumed %d bytes\n",
 596                        (int)(blob.length - ndr_pull->data_size));
 597                 if (dumpdata) {
 598                         ndrdump_data(blob.data + ndr_pull->data_size,
 599                                      blob.length - ndr_pull->data_size,
 600                                      dumpdata);
 601                 }
 602                 ndr_print_dcerpc_sec_verification_trailer(ndr_print, "SEC_VT", sec_vt);
 603         }
 604         TALLOC_FREE(sec_vt);
 605
 606         if (flags & NDR_OUT) {
 607                 status = ndrdump_pull_and_print_pipes(format,
 608                                                       ndr_pull,
 609                                                       ndr_print,
 610                                                       &f->out_pipes);
 611                 if (!NT_STATUS_IS_OK(status)) {
 612                         printf("pull and dump of OUT pipes FAILED: %s\n",
 613                                nt_errstr(status));
 614                         TALLOC_FREE(mem_ctx);
 615                         exit(2);
 616                 }
 617         }
 618
 619         ndr_err = f->ndr_pull(ndr_pull, flags, st);
 620         printf("pull returned %s\n",
 621                ndr_map_error2string(ndr_err));
 622
 623         if (ndr_pull->offset > ndr_pull->relative_highest_offset) {
 624                 highest_ofs = ndr_pull->offset;
 625         } else {
 626                 highest_ofs = ndr_pull->relative_highest_offset;
 627         }
 628
 629         if (dumpdata) {
 630                 printf("%d bytes consumed\n", highest_ofs);
 631                 ndrdump_data(blob.data, blob.length, dumpdata);
 632         }
 633
 634         if (!print_after_parse_failure && !NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 635                 TALLOC_FREE(mem_ctx);
 636                 exit(2);
 637         }
 638
 639         if (highest_ofs != ndr_pull->data_size) {
 640                 printf("WARNING! %d unread bytes\n", ndr_pull->data_size - highest_ofs);
 641                 ndrdump_data(ndr_pull->data+highest_ofs,
 642                              ndr_pull->data_size - highest_ofs,
 643                              dumpdata);
 644         }
 645
 646         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 647                 printf("WARNING: pull of %s was incomplete, "
 648                        "therefore the parse below may SEGFAULT\n",
 649                         f->name);
 650         }
 651
 652         f->ndr_print(ndr_print, f->name, flags, st);
 653
 654         if (flags & NDR_IN) {
 655                 status = ndrdump_pull_and_print_pipes(format,
 656                                                       ndr_pull,
 657                                                       ndr_print,
 658                                                       &f->in_pipes);
 659                 if (!NT_STATUS_IS_OK(status)) {
 660                         printf("pull and dump of IN pipes FAILED: %s\n",
 661                                nt_errstr(status));
 662                         exit(1);
 663                 }
 664         }
 665
 666         /* Do not proceed to validate if we got an error */
 667         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 668                 printf("dump of failed-to-parse %s complete\n",
 669                        f->name);
 670                 TALLOC_FREE(mem_ctx);
 671                 exit(2);
 672         }
 673
 674         if (validate) {
 675                 DATA_BLOB v_blob;
 676                 struct ndr_push *ndr_v_push;
 677                 struct ndr_pull *ndr_v_pull;
 678                 struct ndr_print *ndr_v_print;
 679                 uint32_t highest_v_ofs;
 680                 uint32_t i;
 681                 uint8_t byte_a, byte_b;
 682                 bool differ;
 683
 684                 ndr_v_push = ndr_push_init_ctx(mem_ctx);
 685                 if (ndr_v_push == NULL) {
 686                         printf("No memory\n");
 687                         exit(1);
 688                 }
 689
 690                 if (assume_ndr64) {
 691                         ndr_v_push->flags |= LIBNDR_FLAG_NDR64;
 692                 }
 693
 694                 ndr_err = f->ndr_push(ndr_v_push, flags, st);
 695                 printf("push returned %s\n",
 696                        ndr_map_error2string(ndr_err));
 697                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 698                         printf("validate push FAILED\n");
 699                         TALLOC_FREE(mem_ctx);
 700                         exit(1);
 701                 }
 702
 703                 v_blob = ndr_push_blob(ndr_v_push);
 704
 705                 if (dumpdata) {
 706                         printf("%ld bytes generated (validate)\n", (long)v_blob.length);
 707                         ndrdump_data(v_blob.data, v_blob.length, dumpdata);
 708                 }
 709
 710                 ndr_v_pull = ndr_pull_init_blob(&v_blob, mem_ctx);
 711                 if (ndr_v_pull == NULL) {
 712                         perror("ndr_pull_init_blob");
 713                         TALLOC_FREE(mem_ctx);
 714                         exit(1);
 715                 }
 716                 ndr_v_pull->flags |= LIBNDR_FLAG_REF_ALLOC;
 717
 718                 ndr_err = f->ndr_pull(ndr_v_pull, flags, v_st);
 719                 printf("pull returned %s\n",
 720                        ndr_map_error2string(ndr_err));
 721                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 722                         printf("validate pull FAILED\n");
 723                         TALLOC_FREE(mem_ctx);
 724                         exit(1);
 725                 }
 726
 727                 if (ndr_v_pull->offset > ndr_v_pull->relative_highest_offset) {
 728                         highest_v_ofs = ndr_v_pull->offset;
 729                 } else {
 730                         highest_v_ofs = ndr_v_pull->relative_highest_offset;
 731                 }
 732
 733                 if (highest_v_ofs != ndr_v_pull->data_size) {
 734                         printf("WARNING! %d unread bytes in validation\n",
 735                                ndr_v_pull->data_size - highest_v_ofs);
 736                         ndrdump_data(ndr_v_pull->data + highest_v_ofs,
 737                                      ndr_v_pull->data_size - highest_v_ofs,
 738                                      dumpdata);
 739                 }
 740
 741                 ndr_v_print = talloc_zero(mem_ctx, struct ndr_print);
 742                 ndr_v_print->print = ndr_print_debug_helper;
 743                 ndr_v_print->depth = 1;
 744                 f->ndr_print(ndr_v_print,
 745                              format,
 746                              flags, v_st);
 747
 748                 if (blob.length != v_blob.length) {
 749                         printf("WARNING! orig bytes:%llu validated pushed bytes:%llu\n",
 750                                (unsigned long long)blob.length, (unsigned long long)v_blob.length);
 751                 }
 752
 753                 if (highest_ofs != highest_v_ofs) {
 754                         printf("WARNING! orig pulled bytes:%llu validated pulled bytes:%llu\n",
 755                                (unsigned long long)highest_ofs, (unsigned long long)highest_v_ofs);
 756                 }
 757
 758                 differ = false;
 759                 byte_a = 0x00;
 760                 byte_b = 0x00;
 761                 for (i=0; i < blob.length; i++) {
 762                         byte_a = blob.data[i];
 763
 764                         if (i == v_blob.length) {
 765                                 byte_b = 0x00;
 766                                 differ = true;
 767                                 break;
 768                         }
 769
 770                         byte_b = v_blob.data[i];
 771
 772                         if (byte_a != byte_b) {
 773                                 differ = true;
 774                                 break;
 775                         }
 776                 }
 777                 if (differ) {
 778                         printf("WARNING! orig and validated differ at byte 0x%02X (%u)\n", i, i);
 779                         printf("WARNING! orig byte[0x%02X] = 0x%02X validated byte[0x%02X] = 0x%02X\n",
 780                                 i, byte_a, i, byte_b);
 781                         ndrdump_data_diff(blob.data, blob.length,
 782                                           v_blob.data, v_blob.length,
 783                                           dumpdata);
 784                 }
 785         }
 786
 787         printf("dump OK\n");
 788         TALLOC_FREE(mem_ctx);
 789
 790         poptFreeContext(pc);
 791
 792         return 0;
 793 }